基于动态生产数据的天然气井中液体负载的早期预警和定量评估的新方法:林兴紧气场的案例研究
Lichun Sun1, Maojun Fang1, Weipeng Fan1
1CNOOC Research Institute Ltd, Beijing 100028, PR China.
ACS omega
|October 14, 2024
概括
本研究引入了一种新的模型,用于预测和评估气井中的液体负载,即使不测量单个井水产量. 这种方法可以实时评估,提高紧密气田的效率.
科学领域:
- 石油工程是石油工程中的一个.
- 地质科学 地质科学
背景情况:
- 临密集天然气田的天然气井面临着大量生产水的挑战.
- 缺少个别井水产量测量,阻碍了准确的液体负载预测和评估.
- 目前的方法,如流量测试是昂贵的和耗时的.
研究的目的:
- 开发一种预警模型和定量评估方法,用于气井中的液体装载.
- 为了能够实时判断和评估液体负载,而无需直接测量水产量.
- 为管理液体负载问题提供具有成本效益和效率的解决方案.
主要方法:
- 建立了液体装载预警模型.
- 开发了液体装载高度的定量评估方法.
- 分析了每单位气体生产模式的压力差异.
- 通过实地测试验证模型.
主要成果:
- 确定了四种不同的压力差异模式,对应于不同的生产阶段.
- 通过增加液体载荷部分的特定生产压力差异来诊断液体积累.
- 与现场测试相比,计算液体加载高度的平均误差为5.9%.
结论:
- 开发的模型为早期预警和对井口液体负载的定量评估提供了一个新的解决方案.
- 实时评估是可以实现的,减少对昂贵和缓慢的传统测试方法的依赖.
- 未来的工作应该解决与应力敏感性和高初始水产井有关的局限性.
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